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! { dg-do run }
!
! CO_SUM/CO_MIN/CO_MAX
!
program test
implicit none
intrinsic co_max
intrinsic co_min
intrinsic co_sum
integer :: val(3), tmp_val(3)
integer :: vec(3)
vec = [2,3,1]
if (this_image() == 1) then
val(1) = 42
else
val(1) = -99
endif
val(2) = this_image()
if (this_image() == num_images()) then
val(3) = -55
else
val(3) = 101
endif
tmp_val = val
call test_min
val = tmp_val
call test_max
val = tmp_val
call test_sum
contains
subroutine test_max
integer :: tmp
call co_max (val(::2))
if (num_images() > 1) then
if (any (val /= [42, this_image(), 101])) STOP 1
else
if (any (val /= [42, this_image(), -55])) STOP 2
endif
val = tmp_val
call co_max (val(:))
if (num_images() > 1) then
if (any (val /= [42, num_images(), 101])) STOP 3
else
if (any (val /= [42, num_images(), -55])) STOP 4
endif
end subroutine test_max
subroutine test_min
call co_min (val, result_image=num_images())
if (this_image() == num_images()) then
!write(*,*) "Minimal value", val
if (num_images() > 1) then
if (any (val /= [-99, 1, -55])) STOP 5
else
if (any (val /= [42, 1, -55])) STOP 6
endif
else
if (any (val /= tmp_val)) STOP 7
endif
end subroutine test_min
subroutine test_sum
integer :: n
n = 88
call co_sum (val, result_image=1, stat=n)
if (n /= 0) STOP 8
if (this_image() == 1) then
n = num_images()
!write(*,*) "The sum is ", val
if (any (val /= [42 + (n-1)*(-99), (n**2 + n)/2, -55+(n-1)*101])) STOP 9
else
if (any (val /= tmp_val)) STOP 10
end if
end subroutine test_sum
end program test
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